Cobalt 3/8" Shank Bits - 29 Piece

AmStar Tools & Equipment 38COSP29P AMS38COSP29P Cobalt 3/8" Shank Bits - 29 Piece

• The 3/8"shank allows the larger drills to be used with 3/8" chucks.
• Made of heat resistant Cobalt.
• Cobalt drills display a higher red hardness which permits speeds up to 30% greater than high speed steel drills and are especially effective in drilling tough,higher tensile strength materials like stainless steel,inconel and titanium.
• The 135 degree split point is self-centering and reduces thrust.
• Sizes smaller than 1/16"have the 118 degree standard point.